“Tenseness” and “not working well” are very uncomfortable sensations to have in the workplace. In general, if everyone in an area is feeling like this, then the situation will not get better by ignoring the problem. No one likes to be uncomfortable at work.
If you feel it would be helpful to elaborate on a particular situation, you need to contact the Ombudsperson or University Human Resources. The Ombudsperson could meet with you alone and/or with the parties involved to discuss or mediate how the work environment could be improved. UHR has access to professional training and development products, some of which focus on teamwork and building a collaborative workplace.